不定式-英语课件（梁凡）.ppt

1、 1.talking to me.2.to meet.3.to know 4.whats the weather like there?5.Anything else?6.that sounds wonderful.形式：形式：to do to do 否定形式：否定形式：not to do not to do do not do do not do 功能功能：动词不定式具有名词、形容词和副词的动词不定式具有名词、形容词和副词的特征。因此在句中可以做主语、表语、宾语、特征。因此在句中可以做主语、表语、宾语、宾语补足语、定语和状语宾语补足语、定语和状语概念：动词不定式是非谓语动词的一种，它没概念：

2、动词不定式是非谓语动词的一种，它没有人称和数的变法，在句子中不能独立作谓语。有人称和数的变法，在句子中不能独立作谓语。中考考点：中考考点：重点考查非谓语动词中的动词不定式重点考查非谓语动词中的动词不定式作作宾语宾语、宾语补足语宾语补足语和和目的状语目的状语。动词不定式的用法：动词不定式的用法：1.用作主语 B.可用可用it作形式主语，动词不定式放在后面作真正的主语。作形式主语，动词不定式放在后面作真正的主语。It takes him ten minutes to get there.C.It is+adj.+for sb to do sth.(for 引出动作发出者）引出动作发出者）It is

3、+adj.+of sb to do sth.(of侧重对人的品格侧重对人的品格,特征特征,性格性格的描述的描述.)Its hard _ you to do it well.Its silly _ him to do such a thing.A.谓语动词用单数三人称谓语动词用单数三人称forof2.用作宾语。V.+(not)to do sth.A.类似用法的动词还有：类似用法的动词还有：wish /want/would like/like/hope/plan/help /agree/learn/fail/prefer .+to do sth.B.不定式作宾语时，如带有宾补，则要把不定式放在不定

4、式作宾语时，如带有宾补，则要把不定式放在后面，用后面，用it作形式宾语。作形式宾语。谓语动词常用谓语动词常用find,feel,think.结构：主语结构：主语+find/feel/think+it+adj./n.+to do sth.I feel it my duty to do so.I feel that my duty to do so.it is C.forget to do 忘记忘记去做去做某事，某事，还还 没做没做 forget doing 忘记忘记做过做过某事，某事，已做过已做过类似动词还有：类似动词还有：remember to do 记得做过某事，已发生remember do

5、ing 记住去做某事，未发生stop to do 把某事停下来stop doing 停下去做另外的事Remember to call me.I remember seeing you somewhere before.He stopped to talk with me.He stopped talking.A.类似动词还有：类似动词还有：want /tell/invite/encourage/advise/allow/help/expect.+sb.to do sth.3.用作宾补：tell sb.(not)to do sth.B.使役动词：使役动词：let let /make make/h

6、avehave +sb.+sb.dodo sthsth.C.感官动词：感官动词：一感一感 二听二听 (三让三让)四看四看 feel hear,listen to let,make,have look at,see,watch,noticeI felt someone _（enter）the meeting room just now.She made me _(feel)afraid.feel=I was made _(feel)afraid.to feelenterD.She was heard sing last night.对吗？对吗？She was heard to sing last

7、 night.感官动词和使役动词后的不定式在主动语态中感官动词和使役动词后的不定式在主动语态中省省略略toto，在被动语态中必须，在被动语态中必须加上加上toto。句型：句型：Sb.+be done+Sb.+be done+to doto do sthsth.E.感官动词后接 do 和 doing 的区别+do 表示动作的完整性see sb.doing sth.see sb.do sth+doing 表示动作的进行性I saw him (play)basketball.I saw him (enter)the shop just now.enterplaying4.用作状语I come to

8、see you.(目的状语)I am sorry to hear that.(原因状语)The room is large enough to hold 200 people.(结果状语)5.用作表语His wish is to be a scientist.6.用作定语I have two books to read.不定式与被修饰词有动宾关系，若为不及物动词，介词不可省略.She doesnt have a pen to write with.7.疑问词who/what/which/where/when/how +to do 可构成不定式短语，可用作主语，宾语等 He didnt tell

9、 me where to go.When to start has not been decided.最好还是（不）做最好还是（不）做 请您做请您做？为什么不做为什么不做?宁愿做宁愿做而不愿而不愿.had better（not）do.Would you please do.would rather do.than do prefer to do.rather than do.省略省略 to to 的固定情况的固定情况Why not/Why dont you do sthGroup1:1.-There goes the bell -Its time for class.Lets stop_.A

10、talk B to talk Ctalking Dnot talk2.On my way home,I stopped _ some food.A.buy B.to buy C.buying D.bought3.Dont forget _me the letter.-Ok.A.to send B.send C.sending D.being sent2.I dont enjoy _,but Id like _ this afternoonA.to swim,to swim B.to swim,swimming C.swimming,to swim D.swimming,swimming3.Wh

11、ile I was walking along the lake,I saw some fish _ out of the water.A.jumped B.to jump C.jumping D.are jumpingGroup2:1.-What did your father say just now?（湛江（湛江2010）-He told me not _ in the street.A.runB.runsC.running D.to run Group3:1.Youd better_ too much sugar.You are already overweight.A.not to

12、eat B.to eat C.not eat D.eat2.I would rather stay at home than go shopping.I _ _ _ at home rather than _ shopping.prefer to stay go3.The boss made them work the whole night.=They _ _ _ _ the whole night.were made to work1.Review the words and phrases.2.Get ready for the test.3.Review the comparative and superlative adjectives(形容词形容词比较级和最高级）比较级和最高级）See you!Thank you!